--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\DependencyInjection;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\Config\DependencyInjection\ConfigCachePass;
+
+/**
+ * @group legacy
+ */
+class ConfigCachePassTest extends TestCase
+{
+ public function testThatCheckersAreProcessedInPriorityOrder()
+ {
+ $container = new ContainerBuilder();
+
+ $definition = $container->register('config_cache_factory')->addArgument(null);
+ $container->register('checker_2')->addTag('config_cache.resource_checker', array('priority' => 100));
+ $container->register('checker_1')->addTag('config_cache.resource_checker', array('priority' => 200));
+ $container->register('checker_3')->addTag('config_cache.resource_checker');
+
+ $pass = new ConfigCachePass();
+ $pass->process($container);
+
+ $expected = new IteratorArgument(array(
+ new Reference('checker_1'),
+ new Reference('checker_2'),
+ new Reference('checker_3'),
+ ));
+ $this->assertEquals($expected, $definition->getArgument(0));
+ }
+
+ public function testThatCheckersCanBeMissing()
+ {
+ $container = new ContainerBuilder();
+
+ $definitionsBefore = count($container->getDefinitions());
+ $aliasesBefore = count($container->getAliases());
+
+ $pass = new ConfigCachePass();
+ $pass->process($container);
+
+ // the container is untouched (i.e. no new definitions or aliases)
+ $this->assertCount($definitionsBefore, $container->getDefinitions());
+ $this->assertCount($aliasesBefore, $container->getAliases());
+ }
+}